.mce-content-body {
  font-size: 14px;
  line-height: 20px;
  color: #444444;
  font-family:  "microsoft yahei", "微软雅黑 Regular", "微软雅黑","PingFang SC","simsun","SimHei","arial";
}
.mce-content-body[data-mce-placeholder]:not(.mce-visualblocks)::before{
  color: #cbcbd1;
}
.mce-content-body .question {
  color: #529FFF;
}

.mce-content-body .formula-param {
  font-weight: bold;
  color: #EA5947;
}

.mce-content-body img {
  max-width: 100%;
}
.mce-content-body p {
  margin: 0 0 8px 0;
}